WO2013067973A1 - Procédé, station de base et équipement utilisateur pour mesurer et renvoyer des informations de gestion de ressources sans fil - Google Patents

Procédé, station de base et équipement utilisateur pour mesurer et renvoyer des informations de gestion de ressources sans fil Download PDF

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Publication number
WO2013067973A1
WO2013067973A1 PCT/CN2012/084451 CN2012084451W WO2013067973A1 WO 2013067973 A1 WO2013067973 A1 WO 2013067973A1 CN 2012084451 W CN2012084451 W CN 2012084451W WO 2013067973 A1 WO2013067973 A1 WO 2013067973A1
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WO
WIPO (PCT)
Prior art keywords
rsrp
rsrq
base station
rssi
configuration information
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PCT/CN2012/084451
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English (en)
Chinese (zh)
Inventor
孙静原
周永行
夏亮
任晓涛
Original Assignee
华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP12847903.7A priority Critical patent/EP2770771A4/fr
Publication of WO2013067973A1 publication Critical patent/WO2013067973A1/fr
Priority to US14/274,021 priority patent/US20140241198A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and a method for measuring and feeding back radio resource management information, a base station, and a user equipment. Background technique
  • ABS Almost blank subframe
  • An almost null subframe refers to a subframe in which only a common channel and a Cell-specific Reference Signal (CRS) are transmitted on the subframe without transmitting any other signal.
  • CRS Cell-specific Reference Signal
  • the definition of almost empty subframes in the protocol is static or semi-static, such as specifying that some subframes in a certain period are almost empty subframes, and the remaining subframes are non-almost blank subframes.
  • the UE can separately measure Reference Signal Received Power (RSRP), Received Signal Strength Indicator (RSI), and Reference Signal Received Quality (RSRQ) in two types of subframes. And feed back the measured information to the base station.
  • RSRP Reference Signal Received Power
  • RSI Received Signal Strength Indicator
  • RSSQ Reference Signal Received Quality
  • the base station obtains the degree of signal interference on the corresponding subframe according to the received RSRP and RSRQ.
  • the base station is selected to select the node (cell) serving the UE and the resource allocation according to the RSRQ (which can be used as a reference for data reception quality) measured by the user in different types of subframes.
  • the UE When there is a dynamic almost empty subframe in the cell, the UE cannot acquire the corresponding almost empty subframe position, and thus cannot be the child in the serving cell corresponding to the position of the dynamic almost empty subframe in the interference neighboring cell.
  • the RSRP and RSRQ on the frame perform effective measurement and effective feedback, and feedback of all RSRQ requires too much feedback overhead and complex calculation by the user.
  • the UE when the UE feeds back RSRP and RSRQ, it can only feed back one RSRQ while feeding back one RSRP in a unit of feedback information. To feed back more RSRQ, it is necessary to calculate more corresponding RSRP and need more. The unit of feedback information, resulting in increased computational complexity, inflexible calculations, and large feedback overhead. Summary of the invention
  • Embodiments of the present invention provide a method, an apparatus, and a device for measuring and feeding back radio resource management information, which are capable of measuring specific radio resource management information, such as a service d, a dynamic almost null subframe corresponding to an interference neighboring region, and a dynamic Radio resource management information on subframes that are not nearly null subframes is effectively measured and effectively fed back, and feedback overhead and computational complexity are reduced, and network resources are also saved.
  • specific radio resource management information such as a service d, a dynamic almost null subframe corresponding to an interference neighboring region, and a dynamic Radio resource management information on subframes that are not nearly null subframes is effectively measured and effectively fed back, and feedback overhead and computational complexity are reduced, and network resources are also saved.
  • a method for measuring and feeding back wireless resource management information including:
  • the user equipment UE receives the measurement indication of the base station, where the measurement indication includes: information used to indicate that the UE is used to measure at least one channel state information reference signal CSI-RS resource of the received signal strength indicator RSSI;
  • the UE acquires at least one RSSI according to the measurement indication
  • the UE feeds back the at least one RSRQ to the base station.
  • the embodiment of the present invention also uses a method for measuring and feeding back radio resource management information, including:
  • the base station sends a measurement indication to the user equipment UE, where the measurement indication includes: information used to indicate that the UE is used to measure at least one channel state information reference signal CSI-RS resource of the received signal strength indicator RSSI;
  • the embodiment of the present invention also uses a method for measuring and feeding back radio resource management information, including:
  • User equipment UE acquires configuration information
  • the UE Determining, according to the configuration information, the reference signal receiving quality RSRQ acquired according to the one RSRP, which is required to be fed back when the reference signal receiving power RSRP is fed back; the UE feeding back the one RSRP to the base station according to the The number of RSRQs obtained by an RSRP.
  • the embodiment of the present invention also uses a method for measuring and feeding back radio resource management information, including:
  • the base station performs radio resource management according to the one RSRP and the at least one RSRQ.
  • a user equipment including:
  • a first receiving unit configured to receive a measurement indication of the base station, where the measurement indication includes: information used to indicate that the UE is used to measure at least one channel state information reference signal CSI-RS resource of the received signal strength indicator RSS1;
  • a first acquiring unit configured to acquire at least one RSSI according to the measurement indication received by the receiving unit
  • the first acquiring unit is further configured to: acquire, according to the at least one RSSI, at least one reference signal receiving quality RSRQ, where the at least one RSRQ corresponds to the at least one RSSI-; The at least one RSRQ acquired by an acquisition unit is fed back to the base station.
  • a base station comprising:
  • a first sending unit configured to send a measurement indication to the user equipment UE, where the measurement indication includes: information used to indicate that the UE is used to measure at least one channel state information reference signal CSI-RS resource of the received signal strength indication RSSI; a second receiving unit, configured to receive at least one reference signal received quality RSRQ that is fed back by the UE, where the RSRQ is obtained by the UE according to the measurement indication.
  • the embodiment of the present invention further uses a user equipment, including:
  • a second obtaining unit configured to acquire configuration information
  • a determining unit configured to determine, according to the configuration information acquired by the second acquiring unit, a reference signal receiving quality RSRQ acquired according to the one RSRP, which is required to be fed back when feeding back a reference signal receiving power RSRP;
  • a second feedback unit configured to feed back, by the base station, the one RSRP and the quantity of RSRQs obtained according to the one RSRP.
  • a base station including:
  • a third receiving unit configured to receive a reference signal received power RSRP fed back by the user equipment UE, and at least one reference signal received quality RSRQ acquired according to the one RSRP;
  • a management unit configured to perform radio resource management according to the one RSRP and the at least one RSRQ received by the third receiving unit.
  • the method, device and device for measuring and feeding back the radio resource management information can measure a plurality of specific channel state information reference signals according to the indication of the base station (Channe lSta te Information, Reference S i gna l , CS I-RS) Multiple RSS I on the resource, and will feed back multiple RSRQs obtained from multiple RSS I to the base station.
  • the UE can not obtain the position of the dynamic almost empty subframe in the interference neighboring cell before using the dynamic almost null subframe, because the UE can measure the RSS I and the RSRP according to the subframe position sent by the base station, and thus cannot effectively measure and feedback. Radio resource management information or problems that require too much computational complexity and feedback overhead.
  • the method for measuring and feeding back radio resource management information, the base station, and the user equipment provided by the embodiment of the present invention can feed back a plurality of RSRs obtained according to the RSRP by feeding back an RSRP in a unit of feedback information, thereby reducing Computational complexity and feedback overhead.
  • FIG. 1 is a method for measuring and feeding back radio resource management information according to Embodiment 1 of the present invention.
  • FIG. 2 is a flowchart of a method for measuring and feeding back radio resource management information according to Embodiment 2 of the present invention
  • FIG. 3 is a flowchart of a method for measuring and feeding back radio resource management information according to Embodiment 3 of the present invention
  • Embodiment 5 is a flowchart of a method for measuring and feeding back radio resource management information according to Embodiment 5 of the present invention
  • FIG. 6 is a flowchart of a method for measuring and feeding back radio resource management information according to Embodiment 7 of the present invention.
  • FIG. 7 is a schematic structural diagram of a user equipment according to Embodiment 8 of the present invention.
  • FIG. 8 is a schematic structural diagram of a base station according to Embodiment 9 of the present invention.
  • Embodiment 10 of the present invention is a schematic structural diagram of a user equipment according to Embodiment 10 of the present invention.
  • FIG. 10 is a schematic structural diagram of a user equipment according to Embodiment 10 of the present invention.
  • FIG. 11 is a schematic structural diagram of a user equipment according to Embodiment 10 of the present invention.
  • FIG. 12 is a schematic structural diagram of a base station according to Embodiment 11 of the present invention.
  • FIG. 13 is a schematic structural diagram of a base station according to Embodiment 11 of the present invention. detailed description
  • An embodiment of the present invention provides a method for measuring and feeding back radio resource management information. As shown in FIG. 1 , the method includes the following steps:
  • the UE receives a measurement indication of the base station.
  • the measurement indication includes: information for indicating at least one CSI-RS resource used by the UE to measure the RSSI, where the number of information of the resource in the measurement indication may be one or more.
  • the measurement indication may be transmitted to the UE by using high layer signaling, such as Radio Resource Control (RRC) signaling.
  • RRC Radio Resource Control
  • the UE acquires at least one RSS I according to the measurement indication.
  • the UE measures the RSSI for each of the CSI-RS resources in the measurement indication, so that one or more RSSIs can be obtained.
  • the UE may obtain the received signal strength on multiple resource elements (Resource Element, RE) corresponding to one CSI-RS resource, and then average the multiple received signal strengths measured on the CSI-RS resource. And use this average as the RSSI measured on the CSI-RS resource.
  • the received signal strength is measured multiple times on one CS I-RS resource, and the average of the received signal strengths of the multiple measurements is taken as the RSSI. There is no limit to the way in which RSSI can be calculated in practical applications.
  • the UE acquires at least one RSRQ according to the at least one RSSI.
  • the UE calculates a plurality of RSRQs according to the acquired one RSRP and the plurality of RSS I measured according to the measurement indication.
  • N is an adjustment factor introduced by adjusting RSRP and RSSI to correspond to the same bandwidth or the same number of REs.
  • one RSSI can calculate one RSRQ
  • multiple RSSIs and one RSRP can calculate multiple RSRQs, that is, multiple RSRQs and multiple RSSIs are corresponding. In practice, there is no restriction on how to obtain RSRQ based on RSSI.
  • the UE feeds back at least one RSRQ to the base station.
  • the UE feeds back the calculated multiple RSRQs to the base station.
  • the CSI-RS resource configuration is divided into a zero power CSI-RS and a non-zero power CSI-RS.
  • the RSSI measured by the UE on multiple CSI-RS resources configured by the base station is different.
  • the CSI-RS resource configuration in practical applications is not limited to the zero-power CSI-RS and the non-zero-power CSI-RS.
  • the method for measuring and feeding back radio resource management information may obtain multiple RSSIs on a specific plurality of CSI-RS resources.
  • the RSSI measured by the UE on the Cell-specific Reference Signal (CRS) includes signals of all nodes, and the Channel Quality Indicator (CQI) fed back by the UE cannot consider certain The node dynamically silently blanks.
  • CQI Channel Quality Indicator
  • a signal to Interference plus Noise Ratio (SINR) corresponding to dynamic blanking of some nodes may be obtained, which is used for base occupancy scheduling.
  • SINR Signal to Interference plus Noise Ratio
  • the base station selects a node as a silent CSI-RS resource and instructs the UE to measure the RSSI of the corresponding resource
  • the measured received signal does not include the signal generated by the corresponding node, so that the RSSI obtained according to the measurement indication is not Contains the signal portion corresponding to the node.
  • the resulting RSSI can be expressed as the received signal of the UE corresponding to the corresponding node on a certain resource, and can be used as the basis for recalculating the SINR of the UE on the corresponding resource.
  • the SINR experienced by the user when the corresponding node is silent may refer to SINR.CQI* (the power corresponding to the node of the RSSI-transmitted signal obtained on the CRS) I ( ⁇ According to the measurement, the corresponding power of the node corresponding to the RSSI-transmitted signal is measured.
  • the power corresponding to the node transmitting the signal can be adjusted according to the RSRP measured by the corresponding node and the power ratio of the corresponding RSRP and the data.
  • the method for measuring and feeding back radio resource management information can measure multiple RSSIs on a specific multiple CSI-RS resources according to an indication of a base station, and feed back multiple RSRQs obtained according to multiple RSSIs to Base station.
  • the base station cannot detect and feed back the radio resources by using the RSSI and the RSRP according to the subframe position sent by the base station to obtain the position of the dynamic almost empty subframe in the interference neighboring area before using the dynamic almost null subframe. Management information issues.
  • the computational complexity of the UE is reduced, and the feedback overhead is effectively controlled.
  • Embodiment 2 An embodiment of the present invention provides a method for measuring and feeding back radio resource management information. As shown in FIG. 2, the method includes the following steps:
  • the UE receives a measurement indication of the base station.
  • the measurement indication includes: information for indicating at least one CSI-RS resource used by the UE to measure the RSSI, where the number of information of the resource in the measurement indication may be one or more.
  • the measurement indication may be used to indicate on which CSI-RS resource the RSS I is measured, or to indicate which one or several ports are RSSI measured on a certain CSI-RS resource.
  • a CSI-RS resource includes at least one port.
  • the measurement indication may be transmitted to the UE by using high layer signaling, such as RRC signaling.
  • high layer signaling such as RRC signaling.
  • the UE acquires at least one RSS I according to the measurement indication.
  • the UE measures the RSSI for each of the CSI-RS resources in the measurement indication, so that one or more RSSIs can be obtained.
  • the UE may obtain the received signal strength on multiple REs corresponding to one CSI-RS resource, and then average the multiple received signal strengths measured on the CSI-RS resource, and use the average value as The RSSI measured on the CSI-RS resource.
  • the received signal strength is measured multiple times on one CSI-RS resource, and the average of the received signal strengths of the multiple measurements is taken as the RSSI. There is no limit to the way in which RSSI can be calculated in practical applications.
  • the UE may obtain at least one of the at least one RE corresponding to the at least one port corresponding to the CSI-RS resource within the measurement bandwidth.
  • the signal strength is received, and then the at least one received signal strength is averaged, and this average value is taken as the measured RSSI.
  • the received signal strength is measured multiple times on the corresponding at least one RE on the at least one port corresponding to the CSI-RS resource, and the average value of the received signal strength of the multiple measurements is used as the RSSI.
  • RSSI There is no limit to the way in which RSSI can be calculated in practical applications.
  • the UE acquires at least one RSRQ according to the at least one RSSI.
  • the UE calculates a plurality of RSRQs according to the acquired one RSRP and the plurality of RSSIs measured according to the measurement indication.
  • N is to adjust RSRP and RSSI to correspond to the same bandwidth or the same number of REs.
  • An RSSRQ can be calculated according to any one of the RSRP and the plurality of RSSIs.
  • the plurality of RSSIs and one RSRP can calculate multiple RSRQs, that is, multiple RSRQs and multiple RSSIs are correspondingly. In the actual application, there is no limitation on the manner in which the RSRQ is obtained according to the RSSI.
  • five RSRQs are calculated by using RSRP and five RSSIs measured on CSI-RSi to CSI-RS5 as an example: RSSIi to RSS I 5 measured on CS I-RSi to CSI-RS5 RSRQi, RSRQ2, RSRQ3, RSRQ4, and RSRQ5 are calculated separately from RSRP.
  • multiple RSRQs can be calculated using multiple RSSIs measured on multiple ports and one RSRP.
  • RSRQ is defined as the ratio of RSRP to RSSI.
  • RSRP is the average value of the useful signals received by the UE on the corresponding CSI-RS resources
  • RSSI is the average value of all signals (including useful signals and interference signals) received by the UE on the corresponding CSI-RS resources
  • the RSRQ is useful.
  • the base station can use the ratio as a reference for the channel quality indicator (CNYI) to reflect the channel condition on the corresponding resource, but the CQI is not limited thereto.
  • CNYI channel quality indicator
  • the UE feeds back at least one RSRQ to the base station.
  • the UE feeds back the calculated multiple RSRQs to the base station.
  • the UE feeds back the RSRP and the calculated multiple RSRQs to the base station; (2) the UE feeds back the RSRP and the multiple RSSIs to the base station; (3) the UE will RSRP and multiple The RSSI and the calculated multiple RSRQs are all fed back to the base station, which is not limited in this embodiment of the present invention.
  • the UE when the UE feeds back RSRP and/or RSRQ and/or RSSI, it can also feed back information of the measured CSI-RS resources.
  • the CSI-RS resource configuration is divided into zero power CSI-RS and non-zero power CSI-RS.
  • the RSSI measured by the UE on multiple CSI-RS resources configured by the base station is different.
  • the CSI-RS resource configuration in practical applications is not limited to the zero-power CSI-RS and the non-zero-power CSI-RS.
  • the method for measuring and feeding back radio resource management information can measure multiple RSSIs on ports of multiple CSI-RS resources or CSI-RS resources according to measurement indications of the base station. And at least one RSRP, and feeding a plurality of RSSIs and/or a plurality of RSRQs calculated according to the measured RSSI and RSRP to the base station, so that the base station can obtain the required RSS I information and RSRQ information, such as used by some nodes.
  • the information measured on the ports of multiple CSI-RS resources is more accurate and can effectively reduce the computational complexity of the UE.
  • the present invention solves the problem in the prior art that when the UE measures the RSS I and the RSRP according to the subframe position sent by the base station, when the dynamic almost empty subframe exists in the cell, the specific accurate wireless cannot be effectively fed back when the limited feedback overhead is used.
  • the issue of resource management information when the UE measures the RSS I and the RSRP according to the subframe position sent by the base station, when the dynamic almost empty subframe exists in the cell, the specific accurate wireless cannot be effectively fed back when the limited feedback overhead is used. The issue of resource management information.
  • the method for measuring and feeding back the radio resource management information can also measure multiple RSSIs and at least one RSRP on the ports of multiple CSI-RS resources or CSI-RS resources according to the measurement indication of the base station. And calculating a plurality of RSRQs according to the plurality of measured RSSIs and the at least one RSRP, so that the feedback information provides the base station with more detailed resource interference information, which is beneficial for the base station to perform more detailed estimation on resources in the cell. And control. And the feedback overhead can be effectively controlled.
  • An embodiment of the present invention provides a method for measuring and feeding back radio resource management information. As shown in FIG. 3, the method includes the following steps:
  • the base station sends a measurement indication to the UE.
  • the measurement indication includes: information for indicating at least one CSI-RS resource used by the UE to measure the RSSI, where the number of information of the resource in the measurement indication may be one or more.
  • the measurement indication may be used to indicate on which CSI-RS resource the RSS I is measured, or to indicate which one or several ports are RSSI measured on a certain CSI-RS resource.
  • a CSI-RS resource includes at least one port.
  • the measurement indication may be transmitted to the UE by using high layer signaling, such as RRC signaling.
  • high layer signaling such as RRC signaling.
  • the base station receives at least one RSRQ fed back by the UE.
  • the at least one RSRQ is calculated by the UE through one RSRP and at least one RSS I and fed back to the base station.
  • the UE obtains at least one RSSI specifically:
  • the CSI-RS resource configuration is divided into zero power CSI-RS and non-zero power CSI-RS.
  • the RSSI measured by the UE on multiple CSI-RS resources configured by the base station is different.
  • the CSI-RS resource configuration in practical applications is not limited to the zero-power CSI-RS and the non-zero-power CSI-RS.
  • the UE measures the RSSI for each of the CSI-RS resources in the measurement indication, so that one or more RSSIs can be obtained.
  • the UE may obtain the received signal strength on multiple REs corresponding to one CSI-RS resource, and then average the multiple received signal strengths measured on the CSI-RS resource, and use the average value as The RSSI measured on the CSI-RS resource.
  • the received signal strength is measured multiple times on one CSI-RS resource, and the average of the received signal strengths of the multiple measurements is used as a method for calculating the RSSI in the RSSL practical application.
  • the UE may obtain at least one of the at least one RE corresponding to the at least one port corresponding to the CSI-RS resource within the measurement bandwidth.
  • the signal strength is received, and then the at least one received signal strength is averaged, and this average value is taken as the measured RSSI.
  • the received signal strength is measured multiple times on the corresponding at least one RE on the at least one port corresponding to the CSI-RS resource, and the average value of the received signal strength of the multiple measurements is used as the RSSI.
  • RSSI There is no limit to the way in which RSSI can be calculated in practical applications.
  • the UE may calculate at least one RSRQ according to an RSRP and at least one RSSI.
  • the UE may calculate, according to an RSRP and the obtained at least one RSS I, at least one RSRQ.
  • N is the adjustment factor introduced by adjusting RSRP and RSSI to correspond to the same bandwidth or the same number of REs.
  • at least one RSSI can calculate an RSRQ
  • at least one RSSI and one RSRP can calculate at least one RSRQ, that is, multiple RSRQs and multiple RSSIs are correspondingly. In practice, there is no restriction on how to obtain RSRQ based on RSSI.
  • RSSIi to RSSI 5 measured on CS I-RSi to CSI-RS5 respectively calculate RSRQi, RSRQ2, RSRQ3, RSRQ4 and RSRQ5 with RSRP.
  • multiple RSSIs can also be calculated using multiple RSSIs measured on multiple ports and one RSRP.
  • the base station obtains multiple RSRQs obtained by the UE, and may have multiple acquisition forms, specifically: (1) the UE feeds back the RSRP and the calculated multiple RSRQs to the base station; (2) the UE feeds back the RSRP and the multiple RSSIs to the base station. (3) The UE feeds back the RSRP and the multiple RSSIs and the calculated multiple RSRQs to the base station, which is not limited in this embodiment of the present invention.
  • the base station may send a measurement indication to the UE, where the measurement indication is used to indicate that the UE measures multiple ports on multiple CSI-RS resources or CSI-RS resources.
  • RSSI and at least one RSRP and feedback multiple RSSIs and/or multiple RSRQs calculated according to the measured RSSI and RSRP to the base station, so that the base station can obtain the required RSSI information and RSRQ information, such as use by some nodes.
  • RSSI and RSRQ information when blanking.
  • the information measured on the ports of multiple CS I-RS resources is more accurate and can effectively reduce the computational complexity of the UE.
  • the present invention solves the problem that in the prior art, when the UE measures the RSS I and the RSRP according to the subframe position sent by the base station, when the dynamic almost empty subframe exists in the cell, the base station cannot receive the UE effective feedback when using the limited feedback overhead.
  • the problem of accurate wireless resource management information when the UE measures the RSS I and the RSRP according to the subframe position sent by the base station, when the dynamic almost empty subframe exists in the cell, the base station cannot receive the UE effective feedback when using the limited feedback overhead.
  • the method for measuring and feeding back radio resource management information provided by the embodiment of the present invention is further configured by the base station, by using the measurement indication, to indicate that the UE measures multiple RSSIs and at least one port on multiple CSI-RS resources or CSI-RS resource ports.
  • RSRP and calculating a plurality of RSRQs according to the measured plurality of RSSIs and at least one RSRP, so that the feedback information provides the base station with more detailed resource interference information, which is beneficial for the base station to perform more detailed resources in the cell. Estimation and control, and effective control of feedback overhead.
  • An embodiment of the present invention provides a method for measuring and feeding back radio resource management information. As shown in FIG. 4, the method includes the following steps:
  • the UE acquires configuration information.
  • the configuration information includes: the number of RSRQs that are obtained according to the one RSRP that are correspondingly fed back when an RSRP is fed back, wherein the number of RSRQs that are required to be fed back according to the RSRP is at least one.
  • the configuration information described in the embodiments of the present invention includes, but is not limited to, a limit on the number of feedback RSRQs.
  • the UE determines, according to the configuration information, the number of RSRQs that are obtained according to the RSRP that are required to be fed back when feeding back an RSRP.
  • the UE feeds back an RSRP to the base station and an RSRQ obtained according to the RSRP.
  • the method for measuring and feeding back the radio resource management information can feed back a plurality of RSRQs corresponding to the RSRP to the base station while the UE feeds back an RSRP.
  • the UE can only feed back one RSRQ while feeding back one RSRP in a unit of feedback information, and the RSRQ can only carry one RSSI information.
  • the corresponding multiple RSRP information must be calculated simultaneously to calculate and feed back multiple RSRQ information, and more feedback information is needed.
  • the method of the embodiment of the present invention can ensure that a plurality of RSSRs corresponding to the RSRP are fed back in the case of feeding back an RSRP, so that multiple RSSI information or RSRQ information can be carried in the case of feeding back an RSRP, and the base station only needs to be more
  • multiple RSS I information is obtained, at least one RSRP is measured to obtain the required information, which reduces the computational complexity of the UE, increases the computing flexibility and feedback flexibility of the UE, and better satisfies the need for the base station to be more New feedback requirements when RSSI or RSRQ information is limited and feedback overhead is limited.
  • An embodiment of the present invention provides a method for measuring and feeding back radio resource management information. As shown in FIG. 5, the method includes the following steps:
  • the UE obtains configuration information.
  • the configuration information includes: the number of RSRQs that are obtained according to the RSRP that are required to be fed back in response to an RSRP, wherein the number of RSRQs that are required to be fed back according to the RSRP is at least one.
  • the configuration information described in the embodiment of the present invention includes, but is not limited to, a limit on the number of feedback RSRQs.
  • the type of the configuration information includes: configuration information predefined in the UE and the UE from Configuration information received by the base station.
  • the configuration information that the UE receives from the base station includes configuration information that receives explicit notification from the base station or configuration information of the implicit notification.
  • the explicit configuration information may be used by the base station to directly notify the UE of the number of RSRQs corresponding to the RSRP that need to be fed back when feeding back an RSRP.
  • the implicit configuration information may be a type of information that is bound by the number of RSRQs corresponding to the RSRP that needs to be fed back when feeding back an RSRP. The base station notifies the information, and the UE also knows that the feedback is needed when feeding back an RSRP.
  • the configuration information in the actual application is not limited to the configuration information described above, and is not limited in practical applications. Further, the configuration information may not include the quantity information, such as only the absolute condition or the relative condition, and is not limited herein.
  • the CSI-RS resource configuration is divided into zero power CSI-RS and non-zero power CSI-RS.
  • the RSSI measured by the UE on multiple CSI-RS resources configured by the base station is different.
  • the CSI-RS resource configuration in practical applications is not limited to the zero-power CSI-RS and the non-zero-power CSI-RS.
  • the number of RSRQs corresponding to the RSRP that needs to be fed back when feeding back an RSRP may be one or more.
  • the configuration information is predefined configuration information
  • the number of RSRQs corresponding to the RSRP is also fed back.
  • the configuration information is not limited to the quantity information, and may also include an absolute condition or a relative condition that the feedback RSRQ needs to satisfy.
  • the absolute condition can be a certain threshold or threshold for the absolute value of the feedback RSRQ to be satisfied.
  • the relative condition may be that a relative value between a certain number of RSRQs meets a certain condition, for example, a difference or ratio between a certain two RSRQs is higher than a certain threshold or a threshold.
  • the time dimension can be added. If an RSRQ satisfies the conditions of feedback within a certain time range, the absolute condition or the relative condition is satisfied.
  • Embodiments of the present invention do not limit the configuration information to quantity information. Further, the configuration information may not include the quantity information, such as only the absolute condition or the relative condition, and is not limited herein.
  • the UE determines, according to the configuration information, the number of RSRQs that are obtained according to the RSRP that are correspondingly fed back when feeding back an RSRP. 503. The UE feeds back, by the base station, an RSRP and an RSRQ obtained according to the RSRP.
  • the UE calculates a plurality of RSRQs according to the obtained one RSRP and the plurality of RSS I measured according to the measurement indication.
  • N is an adjustment factor introduced by adjusting RSRP and RSSI to correspond to the same bandwidth or the same number of REs.
  • one RSSI can calculate one RSRQ
  • multiple RSSIs and one RSRP can calculate multiple RSRQs, that is, multiple RSRQs and multiple RSSIs are correspondingly.
  • the UE may measure the RSRP and the RSSI on the CRS, or may measure the RSRP and the RSSI on the at least one CSI-RS resource according to the indication of the base station, or one or more on the CSI-RS resource according to the indication of the base station. Measured on the port.
  • the specific measurement method used by the operator is selected by the operator according to the operational requirements in actual applications, and no limitation is imposed here.
  • the UE obtains an RSRP and multiple RSSIs, and calculates a plurality of RSRQs corresponding to the RSRP according to the one RSRP and the multiple RSSIs, and then feeds back a corresponding RSRP and multiple RSRQs calculated according to the RSRP.
  • Base station obtains an RSRP and multiple RSSIs, and calculates a plurality of RSRQs corresponding to the RSRP according to the one RSRP and the multiple RSSIs, and then feeds back a corresponding RSRP and multiple RSRQs calculated according to the RSRP.
  • Base station may be any suitable base station.
  • the UE can also feed back to the base station information on which resources each RSRQ is acquired. For example: When RSRQ is calculated by RSRP and RSSI, it can be fed back to which port of which resource or which RSRP corresponding to one or more RSRQs is measured, and feedback each RSRQ of one or more RSRQs. The corresponding RSSI is measured on which resource or on which port of which resource.
  • An RSRP can also feed back a plurality of RSRQs corresponding to the RSRP to the base station.
  • the UE can only feed back one RSRQ while feeding back one RSRP in a unit of feedback information, and the RSRQ can only carry one RSSI information.
  • the corresponding multiple RSRP information must be calculated simultaneously to calculate and feed back the corresponding multiple RSRQ information, and more units of feedback information are needed.
  • the method of the embodiment of the present invention can ensure that a plurality of RSSRs corresponding to the RSRP are fed back in the case of feeding back an RSRP, so that multiple RSSI information or RSRQ information can be carried in the case of feeding back an RSRP, and the base station only needs to be more
  • multiple RSS I information is obtained, at least one RSRP is measured to obtain the required information, which reduces the computational complexity of the UE, increases the computing flexibility and feedback flexibility of the UE, and better satisfies the need for the base station to be more New feedback requirements when RSSI or RSRQ information is limited and feedback overhead is limited.
  • the embodiment of the invention provides a method for measuring and feeding back radio resource management information, where the method is specifically:
  • the base station receives one RSRP fed back by the UE and at least one RSRQ corresponding to the RSRP.
  • the UE obtains the RSRQ according to one RSRP.
  • the base station may perform radio resource management according to an RSRP fed back by the UE and at least one RSRQ corresponding to the RSRP. .
  • One of the achievable application scenarios is:
  • the UE calculates a plurality of RSRQs according to the acquired one RSRP and the plurality of RSS I measured according to the measurement indication.
  • N is an adjustment factor introduced by adjusting RSRP and RSSI to correspond to the same bandwidth or the same number of REs.
  • one RSSI can calculate one RSRQ
  • multiple RSSIs and one RSRP can calculate multiple RSRQs, that is, multiple RSRQs and multiple RSSIs are corresponding.
  • the UE may measure the RSRP and the RSSI on the CRS, or may be based on the base station. Instructing to measure RSRP and RSSI on at least one CSI-RS resource, or measuring on one or more ports on the CSI-RS resource according to an indication of the base station.
  • the specific measurement method used by the operator is selected by the operator according to the operational requirements in practical applications.
  • the UE obtains an RSRP and multiple RSSIs, and calculates a plurality of RSRQs corresponding to the RSRP according to the one RSRP and the multiple RSSIs, and then feeds back a corresponding RSRP and multiple RSRQs calculated according to the RSRP.
  • Base station obtains an RSRP and multiple RSSIs, and calculates a plurality of RSRQs corresponding to the RSRP according to the one RSRP and the multiple RSSIs, and then feeds back a corresponding RSRP and multiple RSRQs calculated according to the RSRP.
  • Base station may be any suitable base station.
  • the UE can also feed back to the base station information on which resources each RSRQ is acquired. For example: When RSRQ is calculated by RSRP and RSSI, it can be fed back to which port of which resource or which RSRP corresponding to one or more RSRQs is measured, and feedback each RSRQ of one or more RSRQs. The corresponding RSSI is measured on which resource or on which port of which resource.
  • An RSRP fed back by the UE received by the base station and at least one RSRQ corresponding to the RSRP are used by the base station for radio resource management.
  • the method for measuring and feeding back the radio resource management information can receive a plurality of RSRQs corresponding to the RSRP fed back by the UE while receiving the RSRP fed back by the UE.
  • the UE can only feed back one RSRQ while feeding back one RSRP in a unit of feedback information, and the RSRQ can only carry one RSSI information.
  • multiple RSRQ information or RSSI information is required, multiple RSRP information must be calculated simultaneously to calculate and feed back multiple RSRQ information, and more units of feedback information are needed.
  • the method of the embodiment of the present invention can ensure that, when the base station receives an RSRP, it can receive multiple RSRQs corresponding to the RSRP, so that multiple RSSI information or RSRQ information can be received when receiving one RSRP, which can satisfy the base station.
  • the required information is obtained by measuring at least one RSRP, which reduces the computational complexity of the UE, increases the computing flexibility and feedback flexibility of the UE, and better satisfies the needs of the base station. New feedback requirements when there is more RSSI or RSRQ information and feedback overhead is limited.
  • Embodiments of the present invention provide a method for measuring and feeding back radio resource management information, as shown in FIG. 6 . As shown, the method includes the following steps:
  • the base station sends configuration information to the UE.
  • the configuration information includes: the number of RSRQs to be obtained according to the one RSRP when the RSRP is fed back, wherein the number of RSRQs to be acquired according to the one RSRP is at least one.
  • the configuration information described in the embodiment of the present invention includes, but is not limited to, a limit on the number of feedback RSRQs.
  • the type of the configuration information includes: configuration information predefined in the UE and configuration information received by the UE from the base station.
  • the configuration information received by the UE from the base station further includes configuration information for receiving explicit notification from the base station or configuration information of the implicit notification.
  • the explicit configuration information may be used by the base station to directly notify the UE of the number of RSRQs corresponding to the RSRP that need to be fed back when feeding back an RSRP.
  • the implicit configuration information may be a type of information that is bound by the number of RSRQs corresponding to the RSRP that is required to be fed back when feeding back an RSRP.
  • the base station notifies the information, and the UE also knows that the feedback is needed when feeding back an RSRP.
  • the number of RSRQs corresponding to RSRP The configuration information in the actual application is not limited to the configuration information described above, and is not limited in practical applications.
  • the CSI-RS resource configuration is divided into zero power CSI-RS and non-zero power CSI-RS.
  • the RSSI measured by the UE on multiple CSI-RS resources configured by the base station is different.
  • the CSI-RS resource configuration in practical applications is not limited to the zero-power CSI-RS and the non-zero-power CSI-RS.
  • the number of RSRQs corresponding to the RSRP that needs to be fed back when feeding back an RSRP may be one or more.
  • the configuration information is predefined configuration information
  • the number of RSRQs corresponding to the RSRP may also be fed back.
  • the configuration information is not limited to the quantity information, and may also include an absolute condition or a relative condition that the feedback RSRQ needs to satisfy.
  • the absolute condition may be a certain threshold or threshold that the absolute value of the feedback RSRQ needs to satisfy.
  • the relative condition may be that a relative value between a certain RSRQ satisfies certain conditions, for example, a difference or ratio between a certain two RSRQs is higher than a certain threshold or a threshold.
  • the time dimension can also be added. If an absolute condition or relative condition of a certain RSRQ is satisfied within a certain time range, the feedback condition is satisfied and feedback is needed.
  • the embodiment of the present invention does not set the configuration information. Limited to quantity information.
  • the configuration information in the actual application may not include the quantity information, and only the absolute condition or the relative condition is included, and is not limited herein.
  • the base station receives an RSRP and at least one RSRQ fed back by the UE.
  • the UE calculates a plurality of RSRQs according to the acquired one RSRP and the plurality of RSS I measured according to the measurement indication.
  • N is an adjustment factor introduced by adjusting RSRP and RSSI to correspond to the same bandwidth or the same number of REs.
  • one RSSI can calculate one RSRQ
  • multiple RSSIs and one RSRP can calculate multiple RSRQs, that is, multiple RSRQs and multiple RSSIs are corresponding.
  • the invention is not limited thereto.
  • the UE may measure the RSRP and the RSSI on the CRS, or may measure the RSRP and the RSSI on the at least one CSI-RS resource according to the indication of the base station, or one or more on the CSI-RS resource according to the indication of the base station. Measured on the port.
  • the specific measurement method used by the operator is selected by the operator in actual application according to operational needs.
  • the UE obtains an RSRP and multiple RSSIs, and calculates a plurality of RSRQs corresponding to the RSRP according to the one RSRP and the multiple RSSIs, and then feeds back a corresponding RSRP and multiple RSRQs calculated according to the RSRP.
  • Base station obtains an RSRP and multiple RSSIs, and calculates a plurality of RSRQs corresponding to the RSRP according to the one RSRP and the multiple RSSIs, and then feeds back a corresponding RSRP and multiple RSRQs calculated according to the RSRP.
  • Base station may be any suitable base station.
  • the UE can also feed back to the base station information on which resources each RSRQ is acquired. For example: When RSRQ is calculated by RSRP and RSSI, it can be fed back to which port of which resource or which RSRP corresponding to one or more RSRQs is measured, and feedback each RSRQ of one or more RSRQs. The corresponding RSSI is measured on which resource or on which port of which resource.
  • the base station performs radio resource management according to an RSRP and at least one RSRQ.
  • the method for measuring and feeding back the radio resource management information provided by the embodiment of the present invention can receive a plurality of RSRQs corresponding to the RSRP fed back by the UE while receiving the RSRP fed back by the UE.
  • the UE can only feed back one RSRQ while feeding back one RSRP in a unit of feedback information, and the RSRQ can only carry one RSSI information.
  • the corresponding multiple RSRP information must be calculated simultaneously to calculate and feed back the corresponding multiple RSRQ information, and more units of feedback information are needed.
  • the method of the embodiment of the present invention can ensure that, when the base station receives an RSRP, it can receive multiple RSRQs corresponding to the RSRP, so that multiple RSSI information or RSRQ information can be received when receiving one RSRP, which can satisfy the base station.
  • the required information is obtained by measuring at least one RSRP, which reduces the computational complexity of the UE, increases the computing flexibility and feedback flexibility of the UE, and better satisfies the needs of the base station. New feedback requirements when there is more RSSI or RSRQ information and feedback overhead is limited.
  • the embodiment of the present invention provides a user equipment UE.
  • the UE includes: a first receiving unit 71, a first obtaining unit 72, and a first feedback unit 73, where
  • the first receiving unit 71 is configured to receive a measurement indication of the base station, where the measurement indication includes: information used to indicate at least one CSI-RS resource used by the UE to measure the RSSI.
  • the measurement indication includes: information for indicating at least one CSI-RS resource used by the UE to measure the RSSI, where the number of information of the resource in the measurement indication may be one or more.
  • the measurement indication may be used to indicate on which CSI-RS resource the RSS I is measured, or to indicate which one or several ports are RSSI measured on a certain CSI-RS resource.
  • a CSI-RS resource includes at least one port.
  • the measurement indication may be transmitted to the UE by using high layer signaling, such as RRC signaling.
  • high layer signaling such as RRC signaling.
  • the first obtaining unit 72 is configured to acquire at least one RSSI according to the measurement indication received by the first receiving unit 71.
  • the first obtaining unit 72 measures the RSSI for the information of each CSI-RS resource in the measurement indication, so that one or more RSSIs can be obtained.
  • the CSI-RS resource configuration is divided into a zero power CSI-RS and a non-zero power CSI-RS. When there are different configurations on the corresponding CSI-RS resources in the interference neighboring cell, the RSSI measured by the UE on multiple CSI-RS resources configured by the base station is different.
  • the CSI-RS resource configuration in practical applications is not limited to the zero-power CSI-RS and the non-zero-power CSI-RS.
  • the first obtaining unit 72 measures the RSSI for information of each CSI-RS resource in the measurement indication, so that one or more RSSIs can be obtained.
  • the first acquiring unit 72 may obtain the received signal strength on multiple REs corresponding to one CSI-RS resource, and then average the multiple received signal strengths measured on the CSI-RS resource. This average value is taken as the RSS I measured on the CSI-RS resource. Alternatively, the received signal strength is measured multiple times on one CSI-RS resource, and the average of the received signal strengths of the multiple measurements is taken as the RSSI. There is no limit to the way in which RSSI can be calculated in practical applications.
  • the first obtaining unit 72 is further configured to acquire at least one RSRQ according to the at least one RSSI, where the at least one RSRQ corresponds to the at least one RSSI.
  • the first obtaining unit 72 calculates a plurality of RSRQs according to the acquired one RSRP and the plurality of RSSIs measured according to the measurement indication.
  • N is an adjustment factor introduced by adjusting RSRP and RSSI to correspond to the same bandwidth or the same number of REs.
  • one RSRQ can be calculated, and multiple RSSIs and one RSRP can calculate multiple RSRQs, that is, multiple RSRQs and multiple RSSIs are corresponding. In practice, there is no restriction on how to obtain RSRQ based on RSSI.
  • the first feedback unit 73 is configured to feed back at least one RSRQ acquired by the first acquiring unit 72 to the base station.
  • the first feedback unit 73 feeds back the RSRP and the calculated multiple RSRQs to the base station; (2) the first feedback unit 73 feeds back the RSRP and the multiple RSSIs to the base station.
  • the first feedback unit 73 feeds back RSRP and/or RSRQ and/or RSSI, It is also possible to simultaneously feed back information of the measured CSI-RS resources.
  • the first obtaining unit 72 is specifically configured to measure at least one RSS I on each CSI-RS resource in the at least one CSI-RS resource, so as to obtain at least one RSSI.
  • the measurement indication received by the first receiving unit 71 further includes: port information used to indicate that the UE needs to measure at least one CSI-RS resource of the RSSI, where at least one port is included in one CS I-RS resource.
  • the first obtaining unit 72 is further configured to measure, according to the measurement indication, the RSSI on the at least one port on the at least one CSI-RS resource.
  • the first acquiring unit 72 may acquire at least one corresponding to at least one RE on the at least one port corresponding to the CSI-RS resource.
  • the received signal strength is measured multiple times on the at least one corresponding RE on the at least one port corresponding to the CSI-RS resource, and the average value of the received signal strength is measured as the RSSI.
  • RSSI There is no limit to the way in which RSSI can be calculated in practical applications.
  • the first obtaining unit 72 is specifically configured to calculate an RSRQ according to each RSSI of the at least one RSS1 and one RSRP acquired by the first acquiring unit 72, so as to obtain at least one RSRQ.
  • RSRQ RSRP*N/RSSI, that is, RSRQ is equal to the ratio of RSRP to RSSI and multiplied by N.
  • N is an adjustment factor introduced by adjusting RSRP and RSS I to correspond to the same bandwidth or the same number of REs.
  • one RSSI can calculate one RSRQ, and multiple RSS I and one RSRP can calculate multiple RSRQs, that is, multiple RSRQs and multiple RSSIs are corresponding. In practice, there is no restriction on how to obtain RSRQ based on RSSI.
  • five RSRQs are calculated by using RSRP and five RSSIs measured on CSI-RSi to CSI-RS5 as an example.
  • the first obtaining unit 72 is used to measure on CSI-RSi to CSI-RS5.
  • RSSIi to RSS I 5 calculate RSRQi, RSRQ2, RSRQ3, RSRQ4 and RSRQ5 with RSRP, respectively.
  • Multiple RSSIs and one RSRP measured on multiple ports can also be used in practical applications. Calculate multiple RSRQs.
  • RSRQ is defined as the ratio of RSRP to RSSI.
  • the RSRP is an average value of the useful signals received by the first acquiring unit 72 on the corresponding CSI-RS resources
  • the RSS I is all signals received by the first acquiring unit 72 on the corresponding CSI-RS resources (including useful The average of the signal and the interference signal)
  • RSRQ is the ratio of the useful signal to all signals.
  • the base station can use the ratio as a reference for the CQI to reflect the channel condition on the corresponding resource, but the CQI is not limited thereto.
  • the user equipment provided by the embodiment of the present invention is capable of measuring multiple RSSIs and at least one RSRP on multiple CSI-RS resources or ports of CS I-RS resources according to measurement indications of the base station, and using multiple RSSIs and/or according to measurement
  • the RSSI and RSRP calculated by the RSSI and the RSRP are fed back to the base station, so that the base station can obtain the required RSS I information and RSRQ information, such as RSS I and RSRQ information when some nodes use blanking.
  • the information measured on the ports of multiple CSI-RS resources is more accurate and can effectively reduce the computational complexity of the UE.
  • the present invention solves the problem that in the prior art, when the UE measures the RSSI and the RSRP according to the subframe position sent by the base station, when the dynamic almost empty subframe exists in the cell, the UE cannot effectively feedback the specific accurate radio resource when the limited feedback overhead is used. Management information issues.
  • the user equipment provided by the embodiment of the present invention can also measure multiple RSS I and at least one RSRP on multiple CSI-RS resources or ports of CSI-RS resources according to the measurement indication of the base station, and according to the measured
  • the RSSI and the at least one RSRP calculate a plurality of RSRQs, so that the feedback information provides the base station with more detailed resource interference information, which is beneficial for the base station to perform more detailed estimation and control on the resources in the cell. And the feedback overhead can be effectively controlled.
  • the embodiment of the present invention provides a base station.
  • the base station includes: a first sending unit 81 and a second receiving unit 82, where
  • the first sending unit 81 is configured to send a measurement indication to the UE, where the measurement indication includes: information used to indicate at least one CSI-RS resource used by the UE to measure the RSSI.
  • the measurement indication includes: at least one CSI-RS resource used to indicate that the UE is used to measure the RSSI
  • the information of the source wherein the amount of information of the resource in the measurement indication may be one or more.
  • the measurement indication may be used to indicate on which one or several CSI-RS resources the RSSI is measured, or to indicate which one or several ports on the CSI-RS resource to measure the RSSI.
  • the RS resource includes at least one port.
  • the measurement indication may be transmitted to the UE by using high layer signaling, such as RRC signaling.
  • high layer signaling such as RRC signaling.
  • the second receiving unit 82 is configured to receive at least one RSRQ that is fed back by the UE, where the RSRQ is obtained by the UE according to the measurement indication.
  • the obtaining, by the second receiving unit 82, the multiple RSRQs obtained by the UE may have multiple acquisition forms, specifically: (1) the second receiving unit 82 acquires the RSRP obtained by the UE and the calculated multiple RSRQs; (2) The second receiving unit 82 acquires the RSRP and the plurality of RSSIs obtained by the UE. (3) The second receiving unit 82 receives the RSRP and the plurality of RSSIs obtained by the UE, and the calculated multiple RSRQs. No restrictions.
  • the measurement indication sent by the first sending unit 81 further includes: port information used to indicate that the UE needs to measure at least one CSI-RS resource of the RSSI, where at least one port is included in one CS I-RS resource.
  • the base station provided by the embodiment of the present invention is configured to send, by the base station, a measurement indication to the UE, where the measurement indication is used to indicate that the UE measures multiple RSSIs and at least one RSRP on the ports of multiple CS I-RS resources or CSI-RS resources. And the plurality of RSSIs and/or the plurality of RSRQs calculated according to the measured RSSI and RSRP are fed back to the base station, so that the base station can obtain the required RSS I information and RSRQ information, such as RSSI when some nodes use blanking. And RSRQ information.
  • the more accurate information measured on the ports of multiple CSI-RS resources can also effectively reduce the computational complexity of the UE.
  • the present invention solves the problem that in the prior art, when the UE measures the RSS I and the RSRP according to the subframe position sent by the base station, when the dynamic almost empty subframe exists in the cell, the base station cannot receive the UE effective feedback when the limited feedback overhead is used.
  • the base station provided by the embodiment of the present invention is further configured to: the base station, by using the measurement indication, instruct the UE to measure multiple RSSIs and at least one RSRP on the ports of multiple CSI-RS resources or CSI-RS resources, and according to the measured RSSI and at least one RSRP calculate multiple RSRQs, from
  • the feedback information provides the base station with more detailed resource interference information, which is beneficial to the base station to perform more detailed estimation and control on the resources in the cell, and can effectively control the feedback overhead.
  • the embodiment of the present invention provides a user equipment UE.
  • the UE includes: a second acquiring unit 91, a determining unit 92, and a second feedback unit 93, where
  • the second obtaining unit 91 is configured to acquire configuration information.
  • the configuration information includes: the number of RSRQs that are obtained according to the RSRP that are required to be fed back in response to an RSRP, wherein the number of RSRQs that are required to be fed back according to the RSRP is at least one.
  • the configuration information described in the embodiment of the present invention includes, but is not limited to, a limit on the number of feedback RSRQs.
  • the type of the configuration information includes: configuration information predefined in the UE and configuration information received by the second obtaining unit 91 from the base station.
  • the configuration information received by the second acquiring unit 91 from the base station further includes configuration information for receiving an explicit notification from the base station or configuration information of the implicit notification.
  • the explicit configuration information may be used by the base station to directly notify the UE of the number of RSRQs corresponding to the RSRP that need to be fed back when feeding back an RSRP.
  • the implicit configuration information may be a type of information that is bound by the number of RSRQs corresponding to the RSRP that needs to be fed back when feeding back an RSRP. The base station notifies the information, and the UE also knows that the feedback is needed when feeding back an RSRP.
  • the configuration information in the actual application is not limited to the configuration information described above, and is not limited in practical applications. Further, the configuration information may not include the quantity information, such as only the absolute condition or the relative condition, and is not limited herein.
  • the CSI-RS resource configuration is divided into zero power CSI-RS and non-zero power CSI-RS.
  • the RSSI measured by the UE on multiple CSI-RS resources configured by the base station is different.
  • the CSI-RS resource configuration in practical applications is not limited to the zero-power CSI-RS and the non-zero-power CSI-RS.
  • the configuration information is not limited to the quantity information, and may also include an absolute condition or a relative condition that the feedback RSRQ needs to satisfy.
  • the absolute condition may be a certain threshold or threshold that the absolute value of the feedback RSRQ needs to satisfy.
  • the relative condition can be the phase between several RSRQs. The value satisfies certain conditions, such as the difference or ratio between a certain two RSRQs above a certain threshold or threshold.
  • the time dimension can also be added. If an absolute condition or relative condition of a certain RSRQ is satisfied within a certain time range, the feedback condition is satisfied and feedback is needed.
  • the embodiment of the invention does not limit the configuration information to quantity information. Further, the configuration information may not include the quantity information, such as only the absolute condition or the relative condition, and is not limited herein.
  • the determining unit 92 is configured to determine, according to the configuration information acquired by the second acquiring unit 91, the number of RSRQs that are obtained according to the RSRP that are correspondingly fed back when feeding back an RSRP.
  • the second feedback unit 93 is configured to feed back, by the base station, the one RSRP and the quantity of RSRQs obtained according to the RSRP.
  • the second obtaining unit 91 calculates a plurality of RSRQs according to the obtained one RSRP and the plurality of RSSIs measured according to the measurement indication.
  • N is an adjustment factor introduced by adjusting RSRP and RSSI to correspond to the same bandwidth or the same number of REs.
  • one RSSI can calculate one RSRQ
  • multiple RSSIs and one RSRP can calculate multiple RSRQs, that is, multiple RSRQs and multiple RSSIs are corresponding.
  • the invention is not limited in this regard.
  • the UE may measure the RSRP and the RSSI on the CRS, or may measure the RSRP and the RSSI on the at least one CSI-RS resource according to the indication of the base station, or one or more on the CSI-RS resource according to the indication of the base station. Measured on the port.
  • the specific measurement method used by the operator is selected by the operator according to the operational requirements in the actual application, which is not limited by the embodiment of the present invention.
  • the configuration information acquired by the second obtaining unit 91 includes: the number of RSRQs that are obtained according to the RSRP that are correspondingly fed back when an RSRP is fed back, wherein the number of RSRQs that need to be fed back is at least one.
  • the UE further includes:
  • the calculating unit 1001 is configured to respectively obtain one RSRQ according to each RSSI of the number of RSSIs determined by one RSRP and the determining unit 92, so that the UE obtains the quantity of RSRQ according to the one RSRP.
  • N is an adjustment factor introduced by adjusting RSRP and RSSI to correspond to the same bandwidth or the same number of REs.
  • the second feedback unit 93 is further configured to feed back the RSRP and the number of RSRQs obtained by the computing unit 1001 according to the RSRP to the base station.
  • the UE further includes:
  • the third obtaining unit 1101 is configured to obtain an RSRP, where the RSRP is measured by the third acquiring unit 1101 on the CRS, or is measured by the third acquiring unit 1101 on the CSI-RS resource.
  • the third obtaining unit 1101 is further configured to acquire an RSSI, where the RSSI is measured by the third acquiring unit 1101 on a CRS, or is used by the third acquiring unit 1101 on a CSI-RS resource. Measured.
  • the configuration information acquired by the second obtaining unit 91 includes configuration information sent by the base station or predefined configuration information.
  • the configuration information sent by the base station is the configuration information of the explicit notification or the configuration information of the implicit notification.
  • the type of the configuration information includes: configuration information predefined in the UE and configuration information received by the second obtaining unit 91 from the base station.
  • the configuration information received by the second acquiring unit 91 from the base station further includes configuration information that receives explicit notification from the base station or configuration information of the implicit notification.
  • the explicit configuration information may be used by the base station to directly notify the UE of the number of RSRQs corresponding to the RSRP that need to be fed back when feeding back an RSRP.
  • the implicit configuration information may be a type of information that is bound by the number of RSRQs corresponding to the RSRP that needs to be fed back when feeding back an RSRP. The base station notifies the information, and the UE also knows that the feedback is needed when feeding back an RSRP.
  • the configuration information in the actual application is not limited to the configuration information described above, and is not limited in practical applications. Further, the configuration information may not include quantity information, such as only including absolute Conditions or relative conditions are not limited here.
  • the user equipment provided by the embodiment of the present invention can feed back a plurality of RSRQs corresponding to the RSRP to the base station while the UE feeds back an RSRP.
  • the UE can only feed back one RSRQ while feeding back one RSRP in a unit of feedback information, and the RSRQ can only carry one RSSI information.
  • the corresponding multiple RSRP information must be calculated to calculate and feed back multiple RSRQ information, and more feedback information is needed.
  • the method of the embodiment of the present invention can ensure that a plurality of RSRQs corresponding to the RSRP are fed back in the case of feeding back an RSRP, so that multiple RSSI information or RSRQ information can be carried in the case of feeding back an RSRP, and the base station only needs to be more
  • multiple RSS I information is obtained, at least one RSRP is measured to obtain the required information, which reduces the computational complexity of the UE, increases the computing flexibility and feedback flexibility of the UE, and better satisfies the need for the base station to be more New feedback requirements when RSS I or RSRQ information is limited and feedback overhead is limited.
  • the embodiment of the present invention provides a base station.
  • the base station includes: a third receiving unit 1201 and a management unit 1202, where
  • the third receiving unit 1201 is configured to receive one RSRP fed back by the UE and at least one RSRQ acquired according to the one RSRP.
  • the UE calculates a plurality of RSRQs according to the acquired one RSRP and the plurality of RSS I measured according to the measurement indication.
  • N is an adjustment factor introduced by adjusting RSRP and RSSI to correspond to the same bandwidth or the same number of REs.
  • one RSSI can calculate one RSRQ
  • multiple RSSIs and one RSRP can calculate multiple RSRQs, that is, multiple RSRQs and multiple RSSIs are corresponding.
  • the invention is not limited thereto.
  • the UE may measure the RSRP and the RSSI on the CRS, or may measure the RSRP and the RSSI on the at least one CSI-RS resource according to the indication of the base station, or one or more on the CSI-RS resource according to the indication of the base station. Measured on the port.
  • the specific measurement method used by the operator is selected by the operator in actual application according to operational needs.
  • the UE obtains an RSRP and multiple RSSIs, and calculates a plurality of RSRQs corresponding to the RSRP according to the one RSRP and the multiple RSSIs, and then feeds back a corresponding RSRP and multiple RSRQs calculated according to the RSRP.
  • the UE may also simultaneously feed back to the third receiving unit 1201 information on which resources each RSRQ is acquired. For example: When RSRQ is calculated by RSRP and RSSI, it can be fed back to which port of which resource or which RSRP corresponding to one or more RSRQs is measured, and feedback each RSRQ of one or more RSRQs. The corresponding RSSI is measured on which resource or on which port of which resource.
  • the management unit 1202 is configured to perform radio resource management according to an RSRP and at least one RSRQ received by the third receiving unit 1201.
  • the one RSRP and the at least one RSRQ received by the third receiving unit 1201 are fed back by the UE according to the configuration information, and the configuration information may be configuration information predefined in the UE. ;
  • the configuration information may also be sent to the UE by the base station.
  • the base station further includes:
  • the second sending unit 1301 is configured to send the configuration information to the UE before the third receiving unit 1201 receives one RSRP fed back by the UE and the at least one RSRQ acquired according to the RSRP, where the configuration information includes an explicit notification. Configuration information for configuration information or implicit notifications.
  • the configuration information sent by the second sending unit 1301 includes: the number of RSRQs that are obtained according to an RSRP that are correspondingly fed back when an RSRP is fed back, wherein the number of RSRQs that need to be fed back is at least one.
  • the configuration information is not limited to the quantity information, but may also include the absolute value that the feedback RSRQ needs to satisfy.
  • Condition or relative condition The absolute condition may be a certain threshold or threshold that the absolute value of the feedback RSRQ needs to satisfy.
  • the relative condition may be that a relative value between a certain RSRQ satisfies certain conditions, for example, a difference or ratio between a certain two RSRQs is higher than a certain threshold or a threshold.
  • the time dimension can also be added. If an absolute condition or relative condition of a certain RSRQ is satisfied within a certain time range, the feedback condition is satisfied and feedback is needed.
  • the embodiment of the invention does not limit the configuration information to quantity information.
  • the configuration information in the actual application may not include the quantity information, and only the absolute condition or the relative condition is included, and is not limited herein.
  • the base station provided by the embodiment of the present invention can receive, by the base station, an RSRP that is fed back by the UE, and can also receive multiple RSRQs corresponding to the RSRP fed back by the UE.
  • the UE can only feed back one RSRQ while feeding back one RSRP in a unit of feedback information, and the RSRQ can only carry one RSSI information.
  • the corresponding multiple RSRP information must be calculated at the same time to calculate and feed back multiple RSRQ information, and more units of feedback information are needed.
  • the method of the embodiment of the present invention can ensure that, when the base station receives an RSRP, it can receive multiple RSRQs corresponding to the RSRP, so that multiple RSSI information or RSRQ information can be received when receiving one RSRP, and the base station can be satisfied.
  • the required information is obtained by measuring at least one RSRP, which reduces the computational complexity of the UE, increases the computing flexibility and feedback flexibility of the UE, and better satisfies the needs of the base station. New feedback requirements when there is more RSSI or RSRQ information and feedback overhead is limited.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD LTE Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • a user equipment may be referred to as a terminal (Termina l), a mobile station (Mobi le Sta t ion, MS), a mobile terminal (Mobi le Termina l), or the like.
  • the user equipment can communicate with one or more core networks via a Radio Acces Network (RAN), for example, the user equipment can be a mobile phone (or "cellular" phone), with a mobile terminal.
  • RAN Radio Acces Network
  • the user equipment can be a mobile phone (or "cellular" phone), with a mobile terminal.
  • Computers, etc. for example, user devices can also be portable, pocket, handheld, computer built-in or in-vehicle mobile devices that exchange voice and/or data with a wireless access network.
  • the base station may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB, NB) in WCDMA, or may be an evolved base station in LTE ( Evolut iona l Node B, ENB or e_NodeB), the invention is not limited.
  • BTS Base Transceiver Station
  • NodeB NodeB
  • NB base station
  • LTE Evolution iona l Node B, ENB or e_NodeB
  • the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation. .
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
  • a hard disk or optical disk or the like includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne le domaine des communications. Elle porte sur procédé, une station de base et un équipement utilisateur (UE) pour mesurer et renvoyer des informations de gestion de ressources sans fil. Lorsqu'une sous-trame presque vide émerge dans une cellule, on autorise un surdébit de rétroaction réduit à être utilisé pour une acquisition des informations de gestion de ressources sans fil sur une ressource utilisée par l'UE. Le procédé comprend les opérations suivantes : l'UE reçoit une indication de mesure de la station de base (101), l'indication de mesure comprenant des informations utilisées pour indiquer à l'UE au moins une ressource de signal de référence d'informations d'état de canal (CSI-RS) utilisée pour mesurer une indication d'intensité de signal reçu (RSSI) ; l'UE acquiert au moins une RSSI sur la base de l'indication de mesure (102) ; l'UE acquiert au moins une qualité reçue de signal de référence (RSRQ) sur la base de l'au moins une RSSI (103), l'au moins une RSRQ et l'au moins une RSSI ayant une correspondance biunivoque ; et l'UE renvoie l'au moins une RSRQ à la station de base (104).
PCT/CN2012/084451 2011-11-11 2012-11-12 Procédé, station de base et équipement utilisateur pour mesurer et renvoyer des informations de gestion de ressources sans fil WO2013067973A1 (fr)

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US14/274,021 US20140241198A1 (en) 2011-11-11 2014-05-09 Method for measuring and feeding back radio resource management information, base station, and user equipment

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CN201110357505XA CN103107873A (zh) 2011-11-11 2011-11-11 无线资源管理信息的测量和反馈方法、基站及用户设备

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